After McKenna & Bell, 1997 [families only]

<==o Artiodactyla Owen, 1848 (sorkkaeläimet; artiodactyls, even-toed ungulates)
   |-- †Dichobunidae Gill, 1872 [paraphyletic]
   |-- †Antiacodontidae
   |--+-- †Poeprodon
   |  `-- †Achaenodon
   `--+--o Suina [Suiformia] (sikaeläimet; pig-like artiodactyls)
      |  |?- †Aksyiria
      |  |?- Hippopotamidae (virtahevot)
      |  |?- †Raoellidae
      |  |--o Suoidea Gray, 1821 (siansukuiset sikaeläimet)
      |  |  |-- †Sanitheriidae Simpson, 1931 [Suidae: Sanitheriinae]
      |  |  |-- †Helohyidae
      |  |  `--+== †“Palaeochoeridae” Matthew, 1924 [paraphyletic]
      |  |     `--+-- Tayassuidae (peccaries; pekarit)
      |  |        `-- Suidae Gray, 1821 (pigs; siat)
      |  `--+--o †Anthracotheroidea Leidy, 1869 sensu McKenna & Bell, 1997 (anthrocotheroids)
      |     |  |-- †Choeropotamidae Owen, 1845
      |     |  `-- †Anthracotheriidae Leidy, 1869 non Gill, 1872 [incl. Bothriodontinae; Anthracotheriinae]
      |     `--+--o †Anoplotheroidea
      |        |  |-- †Dacrytheriidae
      |        |  |-- †Anoplotheriidae
      |        |  `-- †Cainotheriidae
      |        `--+--o †Oreodontoidea [Merycoidodontoidea; Oreodonta] (oreodontit)
      |           |  |-- †Agriochoeridae
      |           |  `-- †Oreodontidae [Merycoidodontidae Thorpe, 1923]
      |           `--o †Entelodontoidea (entelodontoids, terrorpigs; entelodontit; hirviösiat)
      |              |-- †Mixtotheriidae
      |              |-- †Cepochoeridae
      |              `-- †Entelodontidae [Elotheridae]
      `--o Selenodontia Scopoli, 1777 sensu  Métais et al., 2005 (selenodonttiset sorkkaeläimet; selenodont artiodactyls)
         |-- †Homacodontidae Marsh, 1849
         `--o Selenodontia sensu Scopoli, 1777 sensu McKenna & Bell, 1997 (selenodonttiset sorkkaeläimet; selenodont artiodactyls)
            |-- †Bunomerycidae
            `--o Neoselenodontia
               |--o Tylopoda (Camel-like artiodactyls; kamelieläimet)
               |  |-- †Xiphodontidae
               |  `--+?-o †Protoceratoidea Marsh, 1891
               |     |  `-- †Protoceratidae Marsh, 1891 sensu McKenna & Bell, 1997
               |     `--o Cameloidea Gray, 1821 (kamelinsukuiset kamelieläimet)
               |        |?- †Oromerycidae
               |        `-- Camelidae Gray, 1821 (camels; kamelit)
               `--o Ruminantia Scapoli, 1777 sensu Norris, 2000
                  |?- †Protoceratidae Marsh, 1891 sensu Norris, 2000
                  `--o Ruminantia Scapoli, 1777 (ruminants; märehtijät)
                     |-- †Amphimerycidae
                     `==o Tragulina (hornless ruminants, sarvettomat märehtijät) [paraphyletic]
                        |-- †Prodremotheriidae
                        |-- †Hypertragulidae
                        |-- †Praetragulidae Vislobokova, 2001
                        `--+-- Tragulidae Milne-Edwards, 1864
                           `--+-- †Bachitheriidae
                              `--+-- †Leptomerycidae
                                 |-- †Archaeomerycidae Simpson, 1945
                                 `--+-- †Lophiomerycidae Janis, 1987
                                    `--o Pecora sensu Webb & Taylor, 1980 (horned ruminants; sarvekkaat)
                                       |==Gelocidae
                                       `--+--o Giraffoidea Simpson, 1931 (Giraffa-like ruminants; kirahvinsukuiset märehtijät)
                                          |  |-- †Climacoceratidae Hamilton, 1978
                                          |  `-- Giraffidae Gray, 1821 (kirahvit; giraffs)
                                          `--+--o Bovioidea Gray, 1821 (Bos-like ruminants; onttosarviset märehtijät)
                                             |  `-- Bovidae Gray, 1821 (bovids, onttosarviset)
                                             `--o Cervoidea Goldfuss, 1820 (deer-like ruminants; hirvensukuiset märehtijät)
                                                `--+-- Moschidae (musk deers; myskihirvet)
                                                   `--+-- Antilocapridae (proghorns; hanka-antiloopit)
                                                      `--+-- †Palaeomerycidae [incl. Dromomerycidae]
                                                         `--+-- †Hoplitomerycidae
                                                            `-- Cervidae (deers; hirvet, kauriit & peurat)

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